I do not often weep: for not only do my thoughts on subjects connected with the chief interests of man daily, nay hourly, descend a thousand fathoms “too deep for tears;” not only does the sternness of my habits of thought present an antagonism to the feelings which prompt tears—wanting of necessity to those who, being protected usually by their levity from any tendency to meditative sorrow, would by that same levity be made incapable of resisting it on any casual access of such feelings; but also, I believe that all minds which have contemplated such objects as deeply as I have done, must, for their own protection from utter despondency, have early encouraged and cherished some tranquillising belief as to the future balances and the hieroglyphic meanings of human sufferings.  On these accounts I am cheerful to this hour, and, as I have said, I do not often weep.  Yet some feelings, though not deeper or more passionate, are more tender than others; and often, when I walk at this time in Oxford Street by dreamy lamplight, and hear those airs played on a barrel-organ which years ago solaced me and my dear companion (as I must always call her), I shed tears, and muse with myself at the mysterious dispensation which so suddenly and so critically separated us for ever.  How it happened the reader will understand from what remains of this introductory narration.

— from Confessions of an English Opium-Eater by Thomas de Quincey

1886